Hi, can anyone tell me what’s wrong with the setup of this VESC please?
When it’s on the bench it all seems to work OK, but as soon as there’s a ‘load’ on the motor, it just judders. I’m sure it’s a setting but I just don’t know which one(s).
non sensored motors will stutter when starting up with load from dead stop. You’ll have to give it a kick start so it starts up smoother. You can also play around with increasing start up boost and min erpm to help with this.
electronic RPM. It’s the revolutions of pole pairs of the magnets in the motor. Most 50-63mm motors have 7 pole pairs, which means 1 mechanical RPM = 7 eRPM.
You’re saying you kick off with your foot on your board and accelerate and it doesnt do anything? You could try adjusting the battery cutoff start, it seems kind of high. You can set it to way below your actual cutoff while you’re testing.
Depends on your battery, Lipos tend to have higher cutoffs than cylinder cells. I’d probably go with 21~ for you, but it’d be best if you can find a data sheet for your particular pack.
If I kick of now it’s working but ‘making progress’ is slow, much slower than with my old boat ESC anyway, which is good in a way but can I increase it slightly?
Also, the brake doesn’t really do much, makes a noise but it’s not actually braking me… does it matter how fast I’m going using the brakes?
Any help on the brakes would be very much appreciated? Not sure if this is the right setting but “Max brake current at dir change” is set to 10.
You’re pretty conservative with your current values (which is good!) but you can afford to up them a bit. Try 60/-60 for motor max/min. Up your battery max higher to about 40A~ as well.
The lower the stronger (-60 is stronger than -40). I keep my max/min values exact opposites (eg. 60/-60) for the same amount of force when accelerating and braking.